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Finding the Fourth Proportional to 5,674.92, 8,513.18 and 1,779.63

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Solution

The fourth proportional to 5,674.92, 8,513.18 and 1,779.63 is: 2,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,674.92 : 8,513.18 = 1,779.63 : x
  2. Step 2: Convert to fraction form
    5,674.92/8,513.18 = 1,779.63/x
  3. Step 3: Cross multiply
    5,674.92x = 8,513.18 × 1,779.63
  4. Step 4: Simplify right side
    5,674.92x = 15,150,310.52
  5. Step 5: Solve for x
    x = 15,150,310.52/5,674.92
  6. Step 6: Final answer
    x = 2,669.70

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.